| Cohort Characteristics | ||||||
|---|---|---|---|---|---|---|
| Readmitted | Not Readmitted | |||||
| ami | hf | stroke | tia | other | noreadm | |
| Insurance Coverage | ||||||
| Commercial | 683 (43%) | 937 (38%) | 471 (39%) | 323 (41%) | 798 (38%) | 706 (38%) |
| Medicare | 742 (47%) | 1,259 (51%) | 616 (51%) | 388 (49%) | 1,070 (51%) | 996 (53%) |
| Other | 158 (10%) | 252 (10%) | 130 (11%) | 78 (10%) | 214 (10%) | 179 (10%) |
| Demographics | ||||||
| Avg Age (SD) | 59 (16) | 59 (16) | 59 (16) | 59 (16) | 59 (16) | 59 (16) |
| Sex (% Male) | 61% | 60% | 60% | 60% | 59% | 58% |
| N | 1,583 | 2,448 | 1,217 | 789 | 2,082 | 1,881 |
The data set contains simulated hospital admission records of 10,000 heart failure (HF) patients. Each patient has a single record corresponding to the patient’s first HF admission (i.e. the index admission).
| Abbreviation | Description |
|---|---|
| Patient_ID | Patient ID (1 through 10,000) |
| bdat | Date of birth |
| admdat | Index admission (I.e. first HF admission) date |
| sex | Sex |
| insur | Primary insurance type |
| readmreason | Reason for readmission: HF, AMI, Stroke, TIA or Other |
| readmdat | The date of first readmission after the index admission |
| deathdat | Date of death |
Study endpoints include all-cause death, all-cause readmission and HF readmission. The outcomes are not explicitly defined: NAs in deathdat and readmdat columns signify that the event did not occur until the end of the study (31/12/2015). Each event can be defined within a given time interval (e.g. 30, 60, 90, 180 days, 1 year from the index admission, etc.) and analyzed using, for example, logistic regression. Since both, the date of the index admission and the date of an event are known, survival analysis can also be done. Think of using birth dates as well, e.g. age at the index admission as a covariate in the model, age cohorts, etc.). For the all-cause readmission, the distribution of reasons for the readmission can also be studied.
Comorbidities defined at the time of index admission. These include chronic conditions (hypertension, COPD, diabetes, etc.) as well as prior cardiovascular events (AMI, stroke, TIA, etc.). You can define your own inclusion/exclusion criteria, e.g. cancer.
| Abbreviation | Description |
|---|---|
| ami | Acute Myocardial Infarction |
| stroke | Stroke |
| tia | Transient Ischemic Attack |
| hyp | Hypertension |
| asc | Atherosclerosis |
| cmyo | Cardiomyopathy |
| anem | Anemia |
| lipid | Disorders of Lipid Metabolism |
| diab | Diabetes |
| obes | Obesity |
| cld | Chronic Liver Disease and Cirrhosis |
| kd | Chronic Kidney Disease/Acute Kidney Failure |
| copd | Chronic Obstructive Pulmonary Disease |
| sleep | Sleep Apnea |
| thyr | Thyroiditis |
| cancer | Cancer |